If there is no listing the driver has either not been installed or was corrupted during installation.
XP – Select Start > Control Panel > System > System Properties > Hardware > Device Manager > Security Devices to view the TPM.
Vista/Windows 7 – Select Start > Control Panel > System > Device Manager > Security Devices to view the TPM.
If the TPM is ON and ACTIVE confirm the Operating System (OS) recognizes the TPM driver.
If the TPM is already ON and ACTIVE do not clear the TPM unless prior data stored in the TPM is unwanted.
If these actions are needed, a second boot to the BIOS to activate after turning the TPM on will be necessary
Navigate to Security or TPM Security (varies by machine).
Enter the BIOS (Select F2 during boot at the Dell splash screen).
Some or all of the actions listed below may be required to make the chip available. To utilize the TPM chip, the chip needs to be enabled and activated in the BIOS, and supporting files and services need to be in place, and cannot be locked.
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